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Standard Gas Springs & Mounts - 15601 About gas springs

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USER INFORMATION

Stroke length

The nominal stroke (defined as S in the catalogue tables) may be utilised fully in all KALLER gas springs.However the recommendation is not to use the fullstroke in normal operation. This is to prevent the spring from being “over-stroked” as a result of changes to the tool or mis-happenings in the tool.We do not recommend the last 5 mm or 10 % of thenominal stroke be utilised.

Mounting Instructions

To achieve the best possible service-life and safetyfrom the gas spring, the instructions below must be followed. The gas spring is intended for use in tool and machine applications. • Secure the gas spring to the tool/machine when-ever possible, using the threaded hole(s) in the base of the gas spring or a suitable flange. • The threaded hole in the piston rod top should notbe used for mounting purposes. It is only to be used when servicing the gas spring. • • Do not use the gas spring in such a way that thepiston rod is released freely from its compressed position, as this could cause internal damage to the gas spring. The maximum allowed stroke speed is from 0.5 to1.6 m/s, depending on model, see catalogue. • Make sure the gas spring is mounted parallel to thedirection of the compression stroke.

Maximum charging pressure

• Ensure the contact surface of the piston rod top isperpendicular to the direction of the compression stroke and is sufficiently hardened. The maximum charging pressure (at 20°) stated for the different gas springs may not be exceeded as it may affect the safety of the product. • The gas spring should not be subjected to sideloads. • Protect the piston rod against mechanical damageand contact with fluids.

Operating temperature

Exceeding the gas spring’s recommended max. operating temperature will shorten the service-life of the gas spring.

Recommended maximum strokes/ minute

The values given for each gas spring in the catalouge are valid for “normal” applications in press tools. The lower limits given are valid for the longer stroke lengths and the higher values for short stroke springs. These values are based on a fully utilised stroke. If only a portion of the stroke is used the number of strokes per minute could be increased. For further information contact your local distributor.

Maximum piston rod velocity

The maximum piston rod velocity is not to be exceeded because it may infringe on safety, as well as the performance of the gas spring.
2 * Min 1-3 mm * depending on model Max 0.5-1.6 m/sFMax 80ËšCMin 0ËšCMax 150 bar (20ËšC) (R19, Mini, and X 170, X 320, X 350 max 180 bar)FluidN

Service interval

If correctly installed and used, the following minimum service-interval of the KALLER Gas Springs, except models TB, HT, HG and HF, are recommended.Stroke lengths up to and including 50 mm after1 million strokes.Stroke lengths above 50 mm after 100 000 strokemeters.The number of stroke meters is calculated as:Used stroke (in meters) x 2 x number of strokes.It is our recommendation that the gas spring is replacedafter 2 million strokes or after 10 years of service.
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We reserve the right to add, delete or modifycomponents without notification.All dimensions are stated in mm.All dimensions are nominal unless tolerance is stated. Edition 6 / May 2005 by Strömsholmen AB +46 140 571 00 • www.kaller.com